[Event "Sochi"]
[Site "Sochi"]
[Date "1980.??.??"]
[Round "4"]
[White "Knaak, Rainer"]
[Black "Vaganian, Rafael A"]
[Result "0-1"]
[WhiteElo "2535"]
[BlackElo "2590"]
[ECO "E41"]

1.d4 e6 2.c4 Nf6 3.Nc3 Bb4 4.e3 c5 5.Bd3 Nc6 6.Nf3 Bxc3+ 7.bxc3 d6 8.e4 e5
9.d5 Ne7 10.Nd2 h6 11.h4 Bd7 12.Nf1 Qa5 13.Bd2 O-O-O 14.Ne3 h5 15.g3 Ng4
16.Nxg4 Bxg4 17.f3 Bd7 18.Qc2 Rdf8 19.Rb1 Qc7 20.Rb2 Kb8 21.Kd1 f6 22.Kc1 Bc8
23.Qd1 Rfg8 24.Be3 Qa5 25.Qb3 Qd8 26.f4 Ng6 27.Be2 Qe7 28.Bf3 f5 29.Qc2 Re8
30.exf5 exf4 31.Bd2 Ne5 32.Be2 fxg3 33.Bg5 Qf7 34.Rg1 Bxf5 35.Qd1 Bg4 36.Rxg3 Nxc4
37.Bxg4 Nxb2 38.Be6 Qf2 39.Qf3 Ref8 40.Qxf2 Rxf2  0-1

